class_docstr: 重载 StreamHandler 使得替换 sys.stdout 的时候能够生效。
code: def __init__(self):
      super(StdoutStreamHandler, self).__init__()
  
file_path: fastNLP/fastNLP/core/log/handler.py
imports: import logging
  import sys
  from logging import getLevelName
label_desc: Use image node_id 1 to create a new StdoutStreamHandler object from inherited base classes: logging with example: obj = StdoutStreamHandler()